Eli Friedman 5d1ba53404 [LoopReroll] Add an extra defensive check to avoid SCEV assertion. ...

Make sure getMinusSCEV() didn't return a pointer.  The following check
would never succeed if it was a pointer, anyway, but calling
getMulExpr() on a pointer SCEV now asserts.

2021-07-13 12:17:09 -07:00

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